Download or upload file speed for the user was limited, but it can be restored by subscription to Telegram Premium. The
notification can be postponed until a being downloaded or uploaded file is visible to the user. Use
getOption("premium_download_speedup") or getOption("premium_upload_speedup") to get expected speedup after subscription
to Telegram Premium.
Subtype of Update.
Download or upload file speed for the user was limited, but it can be restored by subscription to Telegram Premium. The notification can be postponed until a being downloaded or uploaded file is visible to the user. Use getOption("premium_download_speedup") or getOption("premium_upload_speedup") to get expected speedup after subscription to Telegram Premium. Subtype of Update.